I think you missed something (which is odd as I put it in bold).
Out of the four surfaces tested, less E.Coli and Staph.A survived on the wooden surface, with less than 8% surviving.
“anti-bacterial plastic”, specifically the Microban® stuff, was second.
Plastic (i.e. laminate) is in third.
And it doesn’t say if the wood is plain, or treated.
No it doesn’t, but treated with what exactly? Wooden worktops are oiled (typically with vegetable or nut-extract oils). I think if they sprayed it with some exotic anti-bacterial treatment then they would have separated it out as they did with plastic.
I’d trust a surface I can see to be clean, tbh.
Mmm, can you see E.Coli then? Your MicroSuperVision™ versus a controlled trial with proper science. I know which I’d trust.